title: Simple cubic super crystals containing PbTe nanocubes and their core-shell building blocks.
abstract: We report a preparation of high-quality cubic PbTe nanocrystals and their assembly into both square-array, two-dimensional patterns and three-dimensional simple cubic super crystals. The influence of oleylamine in the nanocrystal synthesis and core-shell formation through an anion-exchange mechanism was also studied. The simple cubic super crystals together with two-dimensional assembly patterns containing PbTe nanocubes and their core-shell building blocks were examined using TEM, SEM, AFM, XRD, SAXS, and FTIR. Such super crystals consisting of cubic structural building blocks may allow engineering of more complex materials from which novel properties may emerge.
authors.affiliation: Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, USA.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.forename: Amar
authors.initials: A
authors.lastname: Kumbhar
authors.forename: Jibao
authors.initials: J
authors.lastname: He
authors.forename: Narayan Chandra
authors.initials: NC
authors.lastname: Das
authors.forename: Kaikun
authors.initials: K
authors.lastname: Yang
authors.forename: Jian-Qing
authors.initials: JQ
authors.lastname: Wang
authors.forename: Howard
authors.initials: H
authors.lastname: Wang
authors.forename: Kevin L
authors.initials: KL
authors.lastname: Stokes
authors.forename: Jiye
authors.initials: J
authors.lastname: Fang